If you have any questions, please feel free to interrupt at any time. This sentence means if you have something that you don’t understand, you can make a break in at any time
出自:郑州航空工业管理学院公共英语二

完成拼图验证

按住下方滑块,将拼图拖到缺口处后松开。

拼图背景,将小拼图拖到缺口处
向右拖动滑块